Oracle has jumped into the Cloud-based Social Networking space with its new Oracle Social Network offering.  Kinda of like Yammer and others, this is a secure private network running in the cloud.  This will be a subscription-based service and compliments Oracle’s other cloud based services just announced this week.
 other cloud based services just announced this week.
The Oracle Social Network contains all the goodies that you would expect in a social network, including profiles, activities, conversations, files, etc.
Mobile applications are already available as you can see in the iPad picture here.
I haven’t seen pricing for this solution, but this is certainly a good entry into the cloud for Oracle.

